vercel-labs/wterm

Health v2 · maintenance only

Adoption not part of the score

3480 stars · 161 forks observed · 2026-10-02

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

wterm is a terminal emulator for the web with a Zig-compiled WASM core that parses VT100/VT220/xterm escape sequences and renders to the DOM. It ships as modular packages including headless core, DOM renderer, React and Vue components, a libghostty-powered emulation core, and an in-browser bash shell.

Use cases

• embed a terminal emulator in a web app
• render terminal output in the browser with native text selection
• connect a browser terminal to a remote PTY over WebSocket
• run a bash shell in the browser
• build an accessible web-based terminal with screen reader support
• add a React or Vue terminal component to a frontend
• display vim or htop correctly in a browser terminal

When to choose

• you need a web terminal with native selection, clipboard, find, and accessibility instead of canvas rendering
• you want a tiny (~12 KB) WASM terminal core with optional full VT compliance via libghostty
• you use React or Vue and want an idiomatic terminal component
• you need WebSocket transport to a PTY backend with reconnection

When to avoid

• you need a native desktop terminal emulator rather than an in-browser one
• you require xterm.js's mature plugin ecosystem and battle-tested compatibility
• your project cannot use WASM or Zig toolchains for builds

Facets

library · maturity active

terminal-ui http-server websocket parser wasm web-development frontend developer-tools browser wasm terminal-emulator vt100 xterm dom-rendering react vue zig pty accessibility escape-sequences command-line web-server nodejs typescript

Member repositories

For agents

markdown · JSON · MCP: product_card(name="vercel-labs/wterm")